     /**
     * 数字转成汉字
     * @params num === 要转换的数字
     * @return 汉字
     * */
     function toChinesNum(num) {
        let changeNum = ['零', '一', '二', '三', '四', '五', '六', '七', '八', '九']
        let unit = ['', '十', '百', '千', '万']
        num = parseInt(num)
        let getWan = (temp) => {
          let strArr = temp.toString().split('').reverse()
          let newNum = ''
          let newArr = []
          strArr.forEach((item, index) => {
            newArr.unshift(item === '0' ? changeNum[item] : changeNum[item] + unit[index])
          })
          let numArr = []
          newArr.forEach((m, n) => {
            if (m !== '零') numArr.push(n)
          })
          if (newArr.length > 1) {
            newArr.forEach((m, n) => {
              if (newArr[newArr.length - 1] === '零') {
                if (n <= numArr[numArr.length - 1]) {
                  newNum += m
                }
              } else {
                newNum += m
              }
            })
          } else {
            newNum = newArr[0]
          }
   
          return newNum
        }
        let overWan = Math.floor(num / 10000)
        let noWan = num % 10000
        if (noWan.toString().length < 4) {
          noWan = '0' + noWan
        }
        return overWan ? getWan(overWan) + '万' + getWan(noWan) : getWan(num)
      }

      toChinesNum(100)